The 30-year-old played 179 matches for the Swans and in that time won two premierships in 2005 and 2012, as well as featuring in the Swans' 2006 Grand Final loss to West Coast.

Roberts-Thomson made his AFL debut in 2003 against Geelong after being drafted in as a zone selection as pick 29 in the 2001 National Draft.

Sydney Swans coach John Longmire said Roberts-Thomson will go down as a Sydney Swans great.

"Lewie has been an outstanding competitor for a long period of time,” he said.

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“He has chased, tackled and put his body on the line countless times throughout his career.

“One of his great assets has been his ability and willingness to adapt to any role he has been given. There is not a position on the ground that Lewie hasn’t played in over the course of his career.

“There is probably no greater compliment a player can be paid than being labelled a ‘big game player’, but that is exactly what Lewie was. His ability to stand up in both the 2005 and 2012 grand finals was pivotal to the outcome of those games.

“LRT has been a fan favourite – perhaps even a cult figure – and I’m sure all our fans are thankful for his wonderful contribution to this Club,” Longmire said.